Hydropneumatic pump.



B. S. H. HARRIS.

HYDHUPNEUMATIC PUMP.

APPLICATION H'Lsn ms. 21. 191i.

B. S. H. HARRIS. HYDROFNEUMATIC PUMP. APPucATmn msn ria. 21. 19u.

Patented Mar. 19. 1918.

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B. S. H. HARRIS. HYDROPNEUMATIC PUMP. APPucAnoN mw rsa. 21. 19u.

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UNITED STATES PATENT OFFICE.

:ENJAMIN SAMUEL HnMPTON immers, OF GREENVILLE, SOUTH CAROLINA, AssIGNOR To Haanisuinooxiusn mim. oo., INC., or' GREENVILLE, SOUTH CAROLINA, A cori- POBATION 0F SOUTH CAROLINA HYDROPNEUM'ric rum.

specification of Letton raient. Patented Mar. 19. 1918.

lniilicatlon led February 27, 1917. Serial Io. 151.256.

Referring now to these figures, my invention contemplates the provision of a` substantially cylindrical casing 10, which, as est seen in Fig. 2, is. rovided with an intake member 11 at its ower end, preferably threaded thereinto and having a depending screen-covered cage 12, n substantially fiat valve 13 To all fr/wm it may concern: Be it known thaty I, BENJAMIN S. H. HAR- RIS, a citizen of the United States, and a resident of Greenville, e county of Greenville and State of South Caiolina, have invented a certain new -and useful Im.- provement in Hydropneumatic Pumps, which the following is a specification.

y present invention relates generally to pumps, and more particularly to a pump in compressed air water elevator, without pistons, and 'capable of use without undue wear even in localities where sand is frequently carried with the fluid to e pumped, my primary object being' the provision of a pump which will be simple, movement of the valve 13 with respect to strong and durable, capable'of effective and its seat 16, downwardly against which it is efficient operation, 'and which will permit of movable, underpressure, to prevent the exit ready accessibility to its several working. of to be pumped, after the fluid has parts for purposes of repair and substitiientered with the va ve 13 in its upper positioi.. tion, the cage .14 being open at its sides.

A further object of my invention is to e upper end ofthe casing 10 is closed provide a pump including a single cylinder casing head 17, preferably threaded or casing containing the Huid to b umped, und into which are threaded air and from which such Huid i'sto be flrirced to outlet nipples 18 and 19 respec the place of utilization by other mid un tively, having vulve seats 20 and 21 as best er pressure, and wherein the several npseen in` Fig. 4, and providing erations of thc pump are controlled, through necfion therein of air supply simple eli'ectivo means, and b v the, Huid bepires (not shown i in pumped, in the use thereof. he casing` hea 17 is n the accompanyingr drawings illustrata cavity ,22, communicating with an upper forminr a part of water outlet opening 23, and with the upper s of u pair of s accd depending water outlet pipes 24, the atter of which are anchored at their upper ends within thc lower portion of the head 1 7, and have their lower endsopening into the ad lucent thelowcr end of thc by a ther-cinto, inlet and and exhaust in,f lr my invention, and this specilcation' Figure 1 is a top plan view;

Fig. is a vertical longitudinal section taken substantially on line 2-.2 of Fig. 1.

F ig. 3 is a detail ,horizontal section taken substantially on Ime 3-3 of Fig. 2;

Figi. 4 is a detail vertical section taken at25 in' Fig. 2, saidlower ends of said pipes substantially on li'e 4-4 of Fig. 1,-witli the being secured to and supporting a lower horizontal plate 20, seen in Figs. 2, 3` and casini;l removed;

Fig.' 5 is a detail vertical section through llponfthe upper outer face of he head 17, around Opening 23 is 'l a. portion of the casing head. ytaken sub- ,the water outlet stantialllv on line 5-5 of Fig. 1; valie casing 27, to which a service pipe and Fig. 6 is a detail horizontal section'taken be connected, having therein a substantially on line 6-6 of Fig. 2, vertically movable valve member 28, seated Fig! 7 is n similar view taken substantially downwardly upon the upped; outer surface of o enina,r 23. Intermediately of the ends!3 of the pipes on line 7 7 of Fic. 2, lthe head 1'( around the sai Fig. 8 is a detail vertical section through and at a' point substantially midway the length the chamber of the upper Hout, and

' of the casing 10, said pipes support a Fig. 9 is a detail horizontal section taken substantially on line 9-9 of. Fig. 2. bracket 29, horizontally between them, in

lu tter, as seen casing 10 at a pointV for the cOnwhicha lever 30 is pivotally mounted at one end at 31, and has its opposite free end projecting between stops 32 and 33, which limits its vertical shifting movement upon its pivot 31, said free end of said lever having upper and lower cavities 34 and The lever 30 is also provided with au intermediate head 3G having upper and lower notches 37 in which arc engageable the angular extension 38 oi upper and lower latch members 39 and 40. latch member 39 engaging the lever as seen in Fig. 2, with the lever in its lowermost position, and latch member 40 being designed to similarly engage the lever when the latter is in its upper position. and being to this end provided with a weighted arm 41.

, Adjacent its pivot 31, the lever 30 has a4 crossV pin 42, extending through. and pivotaly connectingthe lower ends. of a pair of upwardly extending arms 43 and 44. each of which is provided with an upper threaded Vsocket 45. by means of which the lower threaded end 46 ofits respective valve actuating rod 4T. 48. is adjustablv connected, the connection so made and of the character stated being locked `b v means of a 'nut 49 upon each rod above the socket 45 The valve actuating rods i7 and 48 e'xtend upwardlyr in spaced parallel relation to resl'iectively actuate the air intake and out,- let. valves. of which the air inlet valve 50 is held downwardly in closed 'position against its seat 20. bv means of the pressure of the lair. except when the rod ll is elevated to project its upper polygonal end 5l upwardli7 against and unseat said valve. valve 50 as seen in Fig. 4. being -movably disposed in the air intake nipple 1S below a dirt receiving cage 52 disposed therein and having apertures 53 through which the air passes when valve 50 is open. t

The valve iactuating! rod 48.H which is moved simultaneously with the rod 17. upon movement of lever 30, controls the air outlety valve 54 Adisposed atA its upper end. and within the lower cylindrical portion of the air outlety nipple 19, below the valveseat .21 before mentioned. the said lower portion of the nipple' 19 having'lateral openings 55 through 'which air may exhaust from the casing 10 with the valve 54 in its lowermost valve 54, and it is obvious that. by this cone ne'ction, the valve 5,4 is` capable of'limited movement relativet0. 4and infthe direction' of the length of, the Isaid rod. and .under tension of a spring 58 coiled about. the up, pery portion; of the rod and compressed be tween the lower end of the valve alud an` adjustable set collar nponthe|` rod'hehaw Y the valve.

Within' the lower portion L: the dateing` Y 10 is disposed a float 60, which in its lowermost position 'rests upon a pad 61 upon the lower sulziporting,r plate 26, and which in its vertical movements. is guided by the water outlet pipes '24 and the casing 10 at one side. as shown iu Fig'. 6. The float G0 is provided with an upwardly projecting stem 62. as seen in Fig. 2, the upper portion of which extends loosely through an opening in the latch member 4() and has a rounded upper extremity projecting into the lower cavity 3? of the lever 30. The stem 62 is also provided with a set collar adjustablv secured upon its upper portion above the latch member 40. for a purpose to be presentljy described.

To the lower surface of the casing head 1? within the` easing,r 10. is secured the upper portion of a float chamber 64. the upper edge of which is cut away to provide a space 65 between the same, and the lower surface of the head 1T. through which the fluidfto 'be pumped may find -its way into the said chamber, the lower rounded end of the chamber having a central opening 6G and being otherwise closed for a purpose to be presentbT described i Vithin the tioat chamber G-l is disposed t .a float GT. having a depending stem 6 pro- ]ectmg downwardly through the opening- ($6. and provided with a valve ring 659 which,

in the" owermost `position ot' the float 6T. engages the lottb inner surface of the float chamber (il around the opening (36..60 close the latter against the iulet of ie fluid to be pumped. 'The lower end of t'` Hout stemh GS depends'looselwT through ar peiling in the latch `ipember 39 and has its lower rounded extremit)v projectingr into the upper cavity 34 of the lever 30. said lower end of" said stem being: further provided with a set collar adjustahlv secured thereon below the `the water to enter the casing 10, the latter of which is in practice submerged within the fluid to be pumped. In this position, it will be noted that the air outlet'valve 54 is in its lower open position. permitting the vair within the casing 10 to readily exhaust therefrom. as the ,water rises. this operationV continuing without action of the parts until the water reaches a level above the upper open end ot the floatehumber 64. due to the fact that lever 550 is latehed by the latch member 39. as seen.l which Vprevents .the lower Qpatgli() from rising. t f

As soon. however, as the fluid overflows `into the upper .float chamber (il, the iioat 67 `aises therein, and upon its initial movement isa p soil valves, a lever actuating said rods,

in this direction, the valve rin 69 being lifted from its closed position, tie pressure 0f water through the opening 66 hastcns the movement of thc Hout. As soon as the float 67 rises sufficiently to bring its set collar 70 into engagement with the latch member 3S), the latter is lifted and the lever 30 released, so that the upward tendency of the lower and forces both of the valve actuating rods 47 and 48 upwardly, the upper end of the former striking the air inlet valve at the same instant the valve 54 seats against the seat 21, so that during the further movement of the rod 47 to raise the valve 50 to open position, the corresponding movement of rod 48 will be permitted by virtue of the pin and slot connection at 56, F7.

Thus, with the air intake valve 50 open valve 54 closed, the pressure of the air upon the surface of the iluid within the ca.'- ing 10 will force the fluid up through the Water 22 of the head 1'7, and to permit cavity raise valve 28 of passage of the water outwardly secured to the valve casing 27, this operation water level tails within to a point permitting the lower oat to descend and release ,the latch member 40, engaged during the outlet of water from the casing, with the lower notch the lever 30, to lock the lever in its upper lposition against the stop When the latch member 40 is released the upper float 67 descends of course to the position shown in ig. 2, lowering the lever 30 and causing corresponding' oweriiig movement. of the valve-actuating rods 47 and 48 to the posihown in Fig. 4.

t is obvious from trie foregoing tout my invention provides a simple durable arrangement which will be effective and efficient in use for the purposes first above stated, as Well as one to the various parts of which ready access may be had by virtue of the connection of the casing` head 17 with the Casing and the fact that the several operating and depend reely within tlie casing 10, so that they ma be Withdrawn therefrom, along with the head 17, whenever desired,

I claim.'

dep/ending from the air intake ing limited movement within the casing, a.

support for s'aid lever carried by said water pipes, latch members for locking said lever :.igainst movement. and lever actuating floats in the easing having stems engaging said lever and provided with means for releasing said latch members.

A pump of the character described, comprising a casing having a water intake valve :it its lower end, a head closing the upper end ot' the casing, ha ving a, vulvcd water outlet, a valved air intake and valved air outlet, a pair of water outlet pipes depending trom sa'id head within the casing and openinfr at their ower ends adjacent the lower end of valve actuating rods depending from the air intake and outlet valves, a lever actuating said rods, movement within the easing, a. support for said lever carried by said water pipes, latch members for locking said lever against movement, 'and lever actuating floats having members, the lower ot' which floats is movable along, and guided by, the lower portions of said Water pipes.

3. A pump ol tliecoaiacier described, coniprising a casing having a water intake valve at its lower and, a head closing the upper end ot' the casing, having a valved water outlet, a valved air intake and valved air outing at their lower ends adjacent the lower end offsai'd casing, valve actuating rods depending from the air intake and outlet valves, a .lever actuating said rods and having limited movement within the casing, a support for said lever carried by said water pipes, latch members for locking said lever against movement, lever actuating floats having means to release said latch members, the lower of which floats is movable along, and guided by, the lower portions of said water pipes, and a supporting plate secured to and carried by the lower ends of the water pipes and A lowermost position 4. A pump of the character described comprising a casing havin a Water intake valve at its lower end, a iead closing the opfer end of the casing having a valved water outlet, a valved air intake and valved air outlet, a 'mir of water pending and opening at their l the lower end of said casing, va ve actuating rods depending from the air intake and outlet valves, a lover actuating said rods and having limited movement within the casin a support for said lever carried by said water pipes, latch members for'locking said lever against movement, and upper and lower lever actuating floats in the casing, having means for releasing said latch me`mbers, and a casing in which the upper float and having limitedl lilo is movable, carried by the said casing head and opening at its upper end adiacent the. lower inner surface of the head. l

.5. A pump oi" the character described, comprising a casing having a water intake at its lower end, a head closing the upper end of the casing and having a valved water outlet. said head also having a valved air intake and a valved air outlet, a pair of water outlet pipes depending from said head within the casing and opening at their lower ends adjacent the lower end ot' said casing, valve actuating rods depending 'from the valves of the air intake and outlet, a lever actuating the saine and having limited movement in the rasl'ig, a bracket carried by the said water outlet pipes intermetliatc their ends. and in which the said lever is pivoted, havingl stops for the levers, latch members mounted in the said bracket and movable to engage and lock the said lever at the limits of its movei'nents, and lever actuating' floats in the casing having stems engaging the said lever and provided. with means for releasing said latch mem bers.

6. A pump of the character described, comprising a casing having a water intake at its lower end, a head closing the upper end of the casing and having a. valved water outlet, said head also having a valved air intake and a valved air outlet, a. pair of water outlet pipes depending from said head within the casing and openin at their lower ends adjacent the lower en of said casing, valve actuating rods depending from the valves of the air intake and outlet, a lever actuating the same. and having limited movement in the casing, a-oraclret carried by the said water outlet pi es intermediate their ends and in which t e said lever is pivoted, having stops for the levers, latch members mounted in the said bracket and movable to engage and lock the said lever at the limit of lts movelmentmand lever actuating floats in the casirl having/stems engaging the said lever., sait? stems ezrtending through portions et the said latch meml bers and having set collars thereon for en gaging and releasing the latch members in the movement of the floats.

7. A pump of the character described comprising a. casing having a Valved fluid intake at its lower end, and a valved Water outlet at its upper end, said casing also having at its upper end a valved air inlet and a valved air outlet, fluid controlled floats movable in said casing, a lever actuated by the said, fioats and having connections for controllng the valves of the air inlet and outlet, and connections for controlling said lever in its movements also actuated bv the said floats.

8. A pump of the character described comprising a casing havin a valved Huid intake at its lower end, an a valved Water outlet at its upper end, said casing also having at its upper end a valved air inlet and a valved air outlet, fluid controlled `floats movable in said casing, a lever actuated by the said floats and having connections for controlling the valves of the air inlet and outlet, means for locking. the said lever, and means carried by the floats for releasing the said locking means. y

BENJAMIN SAHUEL HAMPTGN HARRIS. 

